Window ventilator



April 1, 1930. H. H. LEE

WINDOW VENTILATOR Filed Dec. 10, 1927 V gmxz'nb v Hannah H. Lee

$13 MI-M;,a

attomaqs Patented Apr. 1, 19307 UNITED STATES PATENT OFFICE HANNAH H.LEE, '1. PAUL, MINNESOTA, ASSIGNOR OI ONE-THIRD '1'0 FRANCES R.

MARKER/.1, 01 8'1. PAUL, MINNESOTA wmnow vnnrrnaron Application filedDecember 10, 1927. Serial No. 238,121.

My invention relates to window ventilators and has for its object toprovide a device which ma be readily installed in a window and whic'when installed serves to permit 5 the passage of fresh air into the roomwithout allowing snow or rain to enter and at the same'time preventing astiff breeze or wind from blowin directly into the room. Another object0 the invention resides m 10 providin a curved deflector within theventilator a apted to catch the snow and ra n so as to exclude the samefrom the interior of the room.

Another object of the invention resides in providing latching memberssecured to the upper and lower portion of the ventilator adapted toengage beneath the window S111 and to engage su1table latch lu sattached to the lower sash by means of w oh the venzo tilator may belocked in place in such a manner as to prevent the raising of the windowfrom the exterior.

In the drawings:

Fig. 1 is a perspective view illustrating an '28 embodiment of myinvention applied to a double hung window.

Fig. 2 is a transverse sectlonal view drawn on line 2--2 of Fi 1.

In the use of o i ary window ventilators so considerable inconveniencearises due to the' fact that a considerable portion of the snow and rainduring foul weather in frequently driven into the rooms injuringfurniture and fittingswithin the same. In addition, considerable lack ofsafety is involved in the use of such ventilators due to the fact thatno means are available whereby the lower sash may be locked to preventthe intrusion of strangers. With 111 invention the snow and rain isentirely exc uded from passage into the 'room proper and at the sametime the ventilator maybe securely latched to the window sill and lowersash so that the lower sash cannot be opened from the exterior.

For the purpose of illustrating the application of my invention, I have.shown a double hung window A. which comprises a frame 10 formed withstiles 11 and 12 and rovided with the usual window sill 13.-

I0" stiles 11 and 12 vmay be constructed in the usual manner with stops14, 15 and 16 to provide the usual runway for the two sashes of thewindow of which only the lower sash 17 has been illustrated in thisapplication. The window sill 13 has been illustrated with the usualstool 18 secured to the same which overhangs the apron 19, as best shownin Fig. 2. The sash 17 is constructed with a lower transverse rail 20and stiles 21 which are grooved to receive the usual window pane m 22.Although my invention may be used with difl'erent forms of windows, yetthe same is particularly adapted for use in conjunction with a window ofthe type above described, and the particular window shown has been 5used simply for the purpose of illustrating the application of theinvention.

My im roved window ventilator proper consists o a case B which isconstructed with end walls 23 and 24 connected together by means of afront wall 25 and a bottom 26. This construction may be made of sheetiron soldered or seamed together in any suitable manner with the frontwall 25 inclining away from the bottom 26 and with the upper portion ofthe end walls 23 and 24 substantially horizontal. The uppermost portionof the ventilator B is closed by means of a screen 27 which may beformed with a suitable frame 28 in which the same is mounted. so Thisscreen is hingedly connected to the ventilator by means of a hinge 50secured to a flange. 29, which is turned up from the front wall 25 andbent inwardly into the plane of said screen. This screen, when closed,rests upon similar flanges .51 and 52 bent in from the upper edges ofthe end walls 23 and 24 and upon a bar 53 extending across said flangesand secured to the same at their outer ends. The ventilator is sodesigned that the bottom 26 is adapted to rest upon the stool 28 of thewindow sills 13 while the furthermost edge 30 of screen 27 is adapted tolie beneath the lowermost edge of the rail 20 of window 17 It will benoted that the rearmost portion of the ventilator is open so that airmay circulate through the same and into the room proper through thescreen 27 when the device is mounted within the window as shown in thedrawings. 10o

For attaching the ventilator to the window two latches 31 and 32 areemployed which are riveted to the front wall 25. These latches areformed with hooks 33 adapted to engage through the window. The latches31 and 32 are constructed of spring'material so that the same may bewithdrawn outwardly a distance sufiicient to permit of the disengagementof the hooks 33 with the window stool so as to allow the ven ilator tobe raised upwardly and removed rom the .window when the sash 17 issufiiciently raised. Although I have shown latches for this purpose,catches or other types of fastening devices may be used instead.

In conjunction with the latches 31 and 32 I employ two similar latchmembers 35. These latch members are attached to the flanges 51 and 52 ofthe case B and to the bar 53 and extend upwardly along the stiles 21 ofthe sash 17. These latches are U-sliaped and are constructed with hooks36 similar to the hooks 33 of latches 31 and 32, which hooks are adaptedto engage latch lugs 37 attached to the stiles 21 of the lower sash atthe proper location. The ends of the latches 35 are bent upwardly asindicated in Fig. 2 to form clips 38 which engage the outermost surfaceof the lower edge of the rail 20 of sash 17 and serve to hold the upperportion of the ventilator from movement through the window. The latches35 are constructed of spring material simi lar to the latches 31 and 32and are adapted to move outwardly to clear the latch lugs 37 so that thesash 17 may be raised when desired.

h In ap lying the device tothe window, the sash opened a suflicientdistance and the ventilator inserted into the opening formed with thelip 34 engaging the rearward edge of the stool 18. The device is thenforced downwardly over the said stool, latches 31 and 32 yielding topermit the same to be brought into proper relation as shown in Fig. 2.The lower sash is next lowered until the latch lugs 37 strike thelatches 35 which force the said latches inwardly a sufiicient amount toallow the window to slide in place. The ventilator is preferably held inproper position while this movement of the sash takes place so as torevent the ventilator from merely being tlpped forwardly. As soon as thelowermost edge of the rail 20 engages the curved tip 39 of each of theclips 38, said window becomes firmly fitted between said clips andlatches 35, as shown in Fig. 2.

The device is now firmly attached within the window and the raisin ofthe lower sash from the exterior is entlrely prevented.

the removal of the device the operation is reversed. Latches 35 arefirst withdrawn and the lower sash opened, after which the latches 31and 32 maybe withdrawn and the devicecompletely removed.

For the purpose of excluding the rain and snow from the interior of theroom I employ a curved deflector 40 which is attac ed to the front wall25 intermediate the upper and lower edges thereof. This defiector servesto reverse the' direction of a strong gust of wind following the wall 25and thereby prevents the entranceof snow or rain having'a tendency to beblown into the room. At the same time this deflector serves to break upstrong air currents allowing the air entering the room to circulatein auniform and regular manner.

By hingedly connecting the screen 27 to the case B the same may beconveniently raised when. the latches 35 ha v e been disengaged. Thispermits of covering; thescreen with a cloth which is held .iii placeihetween the frame 28 and the caserlBj and serves as a dust filter forpurifying the air entering the room. At the same time the amount of--air entering the room is cut down so as to eliminate decided draughtswhen the device is used in extremely cold weather.

Although I have shown in the drawings ny ventilator designed for onesize of openmg, yet it can be readily understood that thedevice may bemade in different sizes, or that a construction may be employed wherebythe ventilator is constructed in two sections adapted to telescopetogether so as to cause the ventilator to fit within any size of openingwithin certain limits. Such forms of construction being well-known inthe art, it

has 'not been thought necessary to illustrate the same in detail in thisapplication.

My invention is highly advantageous in that it provides a simple andeffective device for ventilating bedrooms and other rooms,

'where an abundance of fresh air is desired from the exterior withoutthe possibility of snow or rain entering the room. The device" .15perfectly safe in that the lower sash cannot be opened once theventilator is closed, due to the latches employed for holding theventilator attached to the window sill and for holding the lower sashattached to the ventilator. The ventilator'is extremely simple andeffective in operation and will not readily get out of order. Myinvention can be constructed at a nominal cost so that the same may beprofitably marketed.

Changes in the specific form of my invention, as herein disclosed, maybe made with in the scope of what is claimed without departlng from thespirit of my invention.

Having described my invention, a what I claim as new and desire toprotect by Letters Patent is:

1. A ventilator for application to a double hung window, comprising acase having a bottom, a front wall and end walls, said case being openat the rear and upper portion thereof, a screen secured to the upperportion of said case, said case being adapted to be positioned with thebottom thereof resting upon the window sill and with the upper edge ofsaid screen immediately below the lower rail of the lower sash, a springlatch attached to said front wall having a hook adapted to engagebeneath the window sill for holding said ventilator from upwardmovement, a clip attached to the upper portion of said ventilator, aspring latch attached to the upper part of the ventilator, a latch lugsecured to the window sash adapted to co-operate with said latch forpreventing the raising of said lower sash, a downwardly extending lipformed on the bottom of said case engaging with the outermost edge ofthe window sill and co-operating with said first named latch for holdingthe lower portion of said case immovable through said window, and asimilar lip formed on the upper portion of said screen co-operating withthe outer portion of the lowermost edge of the lower sash for holdingthe upper portion of said ventilator a (firom movement inward throughsaid win- 2. A ventilator for application to a double hung windowcomprising a case adapted to be inserted within the opening formed uponraising the lower sash, said case being open at the top, a perforateclosure for said opening hinged to the case and having the movable edgethereof disposed beneath the lower sash, and means for simultaneouslyattaching the said case to said lower sash and restraining said closurefrom opening.

In testimony whereof I have aflixed my signature to this specification.

HANNAH H. LEE.

